1 files changed, 64 insertions, 0 deletions
diff --git a/externals/grill/py/scripts/sig.py b/externals/grill/py/scripts/sig.py
new file mode 100644
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+++ b/externals/grill/py/scripts/sig.py
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+# py/pyext - python script objects for PD and MaxMSP
+#
+# Copyright (c) 2002-2005 Thomas Grill (gr@grrrr.org)
+# For information on usage and redistribution, and for a DISCLAIMER OF ALL
+# WARRANTIES, see the file, "license.txt," in this distribution.  
+#
+
+"""This is an example script for the py/pyext signal support.
+
+For numarray see http://numeric.scipy.org
+It will probably once be replaced by Numeric(3)
+"""
+
+try:
+    import pyext
+except:
+    print "ERROR: This script must be loaded by the PD/Max py/pyext external"
+
+try:
+    import psyco
+    psyco.full()
+    print "Using JIT compilation"
+except:
+    # don't care
+    pass
+
+import sys,math
+
+try:    
+    import numarray
+except:
+    print "Failed importing numarray module:",sys.exc_value
+
+
+class gain(pyext._class):
+    """Just a simple gain stage"""
+    
+    gain = 0
+
+    def _signal(self):
+        # Multiply input vector by gain and copy to output
+        self._outvec(0)[:] = self._invec(0)*self.gain
+
+
+class pan(pyext._class):
+    """Stereo panning"""
+
+    def __init__(self):
+        self.float_1(0.5)
+
+    def float_1(self,pos):
+        """pos ranges from 0 to 1"""
+        x = pos*math.pi/2
+        self.fl = math.cos(x)
+        self.fr = math.sin(x)
+    
+    def _signal(self):
+        # Multiply input vector by gain and copy to output
+        iv = self._invec(0)
+        # first process right output channel because left one could be
+        # identical to input
+        # we could also test with 'self._outvec(1)[:] is iv'
+        self._outvec(1)[:] = iv*self.fr
+        self._outvec(0)[:] = iv*self.fl